Benefit Plans Schedule of Net Benefit Costs (Tables)

6 Months Ended

Feb. 28, 2014

Schedule of Net Periodic Benefit Costs [Abstract]

Schedule of Net Benefit Costs of Assumptions Used [Table Text Block]

	Qualified Pension Benefits						Non-Qualified Pension Benefits				Other Benefits
	2014			2013			2014		2013		2014			2013
Components of net periodic benefit costs for the three months ended are as follows:
Service cost	$	7,802		$	7,216		$	248	$	164	$	476		$	634
Interest cost	8,240			6,501			486		324		502			616
Expected return on assets	(11,082		)	(11,967		)
Prior service cost (credit) amortization	398			400			57		57		(30		)	(5		)
Actuarial (gain) loss amortization	4,445			5,230			241		211		(187		)	223
Transition amount amortization											(124		)	174
Net periodic benefit cost	$	9,803		$	7,380		$	1,032	$	756	$	637		$	1,642
Components of net periodic benefit costs for the six months ended are as follows:
Service cost	$	15,269		$	14,432		$	427	$	329	$	958		$	1,267
Interest cost	14,938			13,006			822		647		1,021			1,232
Expected return on assets	(23,816		)	(23,923		)
Prior service cost (credit) amortization	797			799			114		114		(60		)	(9		)
Actuarial (gain) loss amortization	9,089			10,461			468		422		(187		)	446
Transition amount amortization														349
Net periodic benefit cost	$	16,277		$	14,775		$	1,831	$	1,512	$	1,732		$	3,285